Reptodigitus Chapmanii (Nostocales, Hapalosiphonaceae) Gen. Nov. : A Unique Nostocalean (Cyanobacteria) Genus Based on a Polyphasic Approach1

© 2019 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 56(2020), 2 vom: 01. Apr., Seite 425-436
1. Verfasser: Casamatta, Dale A (VerfasserIn)
Weitere Verfasser: Villanueva, Chelsea D, Garvey, Alyssa D, Stocks, Holly S, Vaccarino, Melissa, Dvořák, Petr, Hašler, Petr, Johansen, Jeffrey R
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article 16S rDNA cyanobacteria phylogeny systematics DNA, Bacterial RNA, Ribosomal, 16S
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520 |a The Nostocales is a monophyletic, heterocytous lineage of cyanobacteria capable of akinete production and division in multiple planes, depending upon family-level clade. While present in a variety of ecosystems, the diversity of the Nostocales has been poorly elucidated. Due to environmentally -induced phenotypic plasticity, morphology alone is often insufficient to determine the true phylogenetic placement of these taxa. In order to bridge this gap, taxonomists now employ the polyphasic approach, combining methods such as morphological analysis, phylogenetic analysis based on DNA sequence and genetic identity based on ribosomal genes, and secondary structure of the 16S-23S ITS and 16S rRNA gene sequences, as well as ecological characterization. Using this combined approach, a new genus and species (Reptodigitus chapmanii gen. et sp. nov.) isolated from the St. Johns River (Jacksonville, Florida, USA) within the Nostocales is herein described. Phylogenetic analyses place this taxon within the Hapalosiphonaceae, sister to the clade containing Fischerella, Hapalosiphon, and Westiellopsis. The 16S-23S ITS secondary folding structure analysis also supports the erection of this new genus 
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650 4 |a phylogeny 
650 4 |a systematics 
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650 7 |a RNA, Ribosomal, 16S  |2 NLM 
700 1 |a Villanueva, Chelsea D  |e verfasserin  |4 aut 
700 1 |a Garvey, Alyssa D  |e verfasserin  |4 aut 
700 1 |a Stocks, Holly S  |e verfasserin  |4 aut 
700 1 |a Vaccarino, Melissa  |e verfasserin  |4 aut 
700 1 |a Dvořák, Petr  |e verfasserin  |4 aut 
700 1 |a Hašler, Petr  |e verfasserin  |4 aut 
700 1 |a Johansen, Jeffrey R  |e verfasserin  |4 aut 
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773 1 8 |g volume:56  |g year:2020  |g number:2  |g day:01  |g month:04  |g pages:425-436 
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